2151041 has 4 divisors (see below), whose sum is σ = 2175300. Its totient is φ = 2126784.

The previous prime is 2151031. The next prime is 2151073. The reversal of 2151041 is 1401512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1392400 + 758641 = 1180^2 + 871^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151041 - 2⁶ = 2150977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2151001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11996 + ... + 12173.

It is an arithmetic number, because the mean of its divisors is an integer number (543825).

2^2151041 is an apocalyptic number.

It is an amenable number.

2151041 is a deficient number, since it is larger than the sum of its proper divisors (24259).

2151041 is an equidigital number, since it uses as much as digits as its factorization.

2151041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24258.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 2151041 is about 1466.6427649568. The cubic root of 2151041 is about 129.0871154049.

Adding to 2151041 its reverse (1401512), we get a palindrome (3552553).

The spelling of 2151041 in words is "two million, one hundred fifty-one thousand, forty-one".